//EditTaskFunc is used to edit tasks, handles "/edit/" URL
func EditTaskFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
id, err := strconv.Atoi(r.URL.Path[len("/edit/"):])
if err != nil {
log.Println(err)
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
redirectURL := utils.GetRedirectUrl(r.Referer())
username := sessions.GetCurrentUserName(r)
task, err := db.GetTaskByID(username, id)
categories := db.GetCategories(username)
task.Categories = categories
task.Referer = redirectURL
if err != nil {
task.Message = "Error fetching Tasks"
}
editTemplate.Execute(w, task)
}
//TrashTaskFunc is used to populate the trash tasks
func TrashTaskFunc(w http.ResponseWriter, r *http.Request) {
//for best UX we want the user to be returned to the page making
//the delete transaction, we use the r.Referer() function to get the link
redirectURL := utils.GetRedirectUrl(r.Referer())
if r.Method != "GET" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
id, err := strconv.Atoi(r.URL.Path[len("/trash/"):])
if err != nil {
log.Println("TrashTaskFunc", err)
message = "Incorrect command"
http.Redirect(w, r, redirectURL, http.StatusFound)
} else {
username := sessions.GetCurrentUserName(r)
err = db.TrashTask(username, id)
if err != nil {
message = "Error trashing task"
} else {
message = "Task trashed"
}
http.Redirect(w, r, redirectURL, http.StatusFound)
}
}
//AddCommentFunc will be used
func AddCommentFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
log.Println(err)
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
r.ParseForm()
text := r.Form.Get("commentText")
id := r.Form.Get("taskID")
idInt, err := strconv.Atoi(id)
if (err != nil) || (text == "") {
log.Println("unable to convert into integer")
message = "Error adding comment"
} else {
username := sessions.GetCurrentUserName(r)
err = db.AddComments(username, idInt, text)
if err != nil {
log.Println("unable to insert into db")
message = "Comment not added"
} else {
message = "Comment added"
}
}
http.Redirect(w, r, "/", http.StatusFound)
}
//DeleteTaskFunc is used to delete a task, trash = move to recycle bin, delete = permanent delete
func DeleteTaskFunc(w http.ResponseWriter, r *http.Request) {
username := sessions.GetCurrentUserName(r)
if r.Method != "GET" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
id := r.URL.Path[len("/delete/"):]
if id == "all" {
err := db.DeleteAll(username)
if err != nil {
message = "Error deleting tasks"
http.Redirect(w, r, "/", http.StatusInternalServerError)
}
http.Redirect(w, r, "/", http.StatusFound)
} else {
id, err := strconv.Atoi(id)
if err != nil {
log.Println(err)
http.Redirect(w, r, "/", http.StatusBadRequest)
} else {
err = db.DeleteTask(username, id)
if err != nil {
message = "Error deleting task"
} else {
message = "Task deleted"
}
http.Redirect(w, r, "/deleted", http.StatusFound)
}
}
}
//ShowCompleteTasksFunc is used to populate the "/completed/" URL
func ShowCompleteTasksFunc(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" {
username := sessions.GetCurrentUserName(r)
categories := db.GetCategories(username)
context, err := db.GetTasks(username, "completed", "")
context.Categories = categories
if err != nil {
http.Redirect(w, r, "/completed", http.StatusInternalServerError)
}
completedTemplate.Execute(w, context)
}
}
//DeleteCategoryFunc will delete any category
func DeleteCategoryFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
categoryName := r.URL.Path[len("/del-category/"):]
username := sessions.GetCurrentUserName(r)
err := db.DeleteCategoryByName(username, categoryName)
if err != nil {
message = "error deleting category"
} else {
message = "Category " + categoryName + " deleted"
}
http.Redirect(w, r, "/", http.StatusFound)
}
//ShowTrashTaskFunc is used to handle the "/trash" URL which is used to show the deleted tasks
func ShowTrashTaskFunc(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" {
username := sessions.GetCurrentUserName(r)
categories := db.GetCategories(username)
context, err := db.GetTasks(username, "deleted", "")
context.Categories = categories
if err != nil {
http.Redirect(w, r, "/trash", http.StatusInternalServerError)
}
if message != "" {
context.Message = message
message = ""
}
err = deletedTemplate.Execute(w, context)
if err != nil {
log.Fatal(err)
}
}
}
//SearchTaskFunc is used to handle the /search/ url, handles the search function
func SearchTaskFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
r.ParseForm()
query := r.Form.Get("query")
username := sessions.GetCurrentUserName(r)
context, err := db.SearchTask(username, query)
if err != nil {
log.Println("error fetching search results")
}
categories := db.GetCategories(username)
context.Categories = categories
searchTemplate.Execute(w, context)
}
//AddCategoryFunc used to add new categories to the database
func AddCategoryFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" { // We respond only to POST requests, redirect to home for others
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
r.ParseForm()
category := r.Form.Get("category")
if strings.Trim(category, " ") != "" {
username := sessions.GetCurrentUserName(r)
log.Println("adding category")
err := db.AddCategory(username, category)
if err != nil {
message = "Error adding category"
http.Redirect(w, r, "/", http.StatusBadRequest)
} else {
message = "Added category"
http.Redirect(w, r, "/", http.StatusFound)
}
}
}
//RestoreTaskFunc is used to restore task from trash, handles "/restore/" URL
func RestoreTaskFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
id, err := strconv.Atoi(r.URL.Path[len("/restore/"):])
if err != nil {
log.Println(err)
http.Redirect(w, r, "/deleted", http.StatusBadRequest)
} else {
username := sessions.GetCurrentUserName(r)
err = db.RestoreTask(username, id)
if err != nil {
message = "Restore failed"
} else {
message = "Task restored"
}
http.Redirect(w, r, "/deleted/", http.StatusFound)
}
}
//CompleteTaskFunc is used to show the complete tasks, handles "/completed/" url
func CompleteTaskFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
redirectURL := utils.GetRedirectUrl(r.Referer())
id, err := strconv.Atoi(r.URL.Path[len("/complete/"):])
if err != nil {
log.Println(err)
} else {
username := sessions.GetCurrentUserName(r)
err = db.CompleteTask(username, id)
if err != nil {
message = "Complete task failed"
} else {
message = "Task marked complete"
}
http.Redirect(w, r, redirectURL, http.StatusFound)
}
}
//ShowCategoryFunc will populate the /category/<id> URL which shows all the tasks related
// to that particular category
func ShowCategoryFunc(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" && sessions.IsLoggedIn(r) {
category := r.URL.Path[len("/category/"):]
username := sessions.GetCurrentUserName(r)
context, err := db.GetTasks(username, "", category)
categories := db.GetCategories(username)
if err != nil {
http.Redirect(w, r, "/", http.StatusInternalServerError)
}
if message != "" {
context.Message = message
}
context.CSRFToken = "abcd"
context.Categories = categories
message = ""
expiration := time.Now().Add(365 * 24 * time.Hour)
cookie := http.Cookie{Name: "csrftoken", Value: "abcd", Expires: expiration}
http.SetCookie(w, &cookie)
homeTemplate.Execute(w, context)
}
}
//ShowAllTasksFunc is used to handle the "/" URL which is the default ons
//TODO add http404 error
func ShowAllTasksFunc(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" {
username := sessions.GetCurrentUserName(r)
context, err := db.GetTasks(username, "pending", "")
log.Println(context)
categories := db.GetCategories(username)
if err != nil {
http.Redirect(w, r, "/", http.StatusInternalServerError)
} else {
if message != "" {
context.Message = message
}
context.CSRFToken = "abcd"
context.Categories = categories
message = ""
expiration := time.Now().Add(365 * 24 * time.Hour)
cookie := http.Cookie{Name: "csrftoken", Value: "abcd", Expires: expiration}
http.SetCookie(w, &cookie)
homeTemplate.Execute(w, context)
}
}
}
//UpdateCategoryFunc is used to update a task, handes "/upd-category/" URL
func UpdateCategoryFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
var redirectURL string
r.ParseForm()
oldName := r.URL.Path[len("/upd-category/"):]
newName := r.Form.Get("catname")
username := sessions.GetCurrentUserName(r)
err := db.UpdateCategoryByName(username, oldName, newName)
if err != nil {
message = "error updating category"
log.Println("not updated category " + oldName)
redirectURL = "/category/" + oldName
} else {
message = "cat " + oldName + " -> " + newName
redirectURL = "/category/" + newName
}
log.Println("redirecting to " + redirectURL)
http.Redirect(w, r, redirectURL, http.StatusFound)
}
//UpdateTaskFunc is used to update a task, handes "/update/" URL
func UpdateTaskFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
r.ParseForm()
id, err := strconv.Atoi(r.Form.Get("id"))
if err != nil {
log.Println(err)
}
category := r.Form.Get("category")
title := r.Form.Get("title")
content := r.Form.Get("content")
priority, err := strconv.Atoi(r.Form.Get("priority"))
if err != nil {
log.Println(err)
}
username := sessions.GetCurrentUserName(r)
var hidden int
hideTimeline := r.FormValue("hide")
if hideTimeline != "" {
hidden = 1
} else {
hidden = 0
}
err = db.UpdateTask(id, title, content, category, priority, username, hidden)
if err != nil {
message = "Error updating task"
} else {
message = "Task updated"
log.Println(message)
}
http.Redirect(w, r, "/", http.StatusFound)
}
//DeleteCommentFunc will delete any category
func DeleteCommentFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
id := r.URL.Path[len("/del-comment/"):]
commentID, err := strconv.Atoi(id)
if err != nil {
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
username := sessions.GetCurrentUserName(r)
err = db.DeleteCommentByID(username, commentID)
if err != nil {
message = "comment not deleted"
} else {
message = "comment deleted"
}
http.Redirect(w, r, "/", http.StatusFound)
}
//AddTaskFunc is used to handle the addition of new task, "/add" URL
func AddTaskFunc(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" { // Will work only for POST requests, will redirect to home
http.Redirect(w, r, "/", http.StatusBadRequest)
return
}
var filelink string // will store the html when we have files to be uploaded, appened to the note content
r.ParseForm()
file, handler, err := r.FormFile("uploadfile")
if err != nil && handler != nil {
//Case executed when file is uploaded and yet an error occurs
log.Println(err)
message = "Error uploading file"
http.Redirect(w, r, "/", http.StatusInternalServerError)
}
taskPriority, priorityErr := strconv.Atoi(r.FormValue("priority"))
if priorityErr != nil {
log.Print(priorityErr)
message = "Bad task priority"
}
priorityList := []int{1, 2, 3}
found := false
for _, priority := range priorityList {
if taskPriority == priority {
found = true
}
}
//If someone gives us incorrect priority number, we give the priority
//to that task as 1 i.e. Low
if !found {
taskPriority = 1
}
var hidden int
hideTimeline := r.FormValue("hide")
if hideTimeline != "" {
hidden = 1
} else {
hidden = 0
}
// dueDate := r.FormValue("dueDate")
category := r.FormValue("category")
title := template.HTMLEscapeString(r.Form.Get("title"))
content := template.HTMLEscapeString(r.Form.Get("content"))
formToken := template.HTMLEscapeString(r.Form.Get("CSRFToken"))
cookie, _ := r.Cookie("csrftoken")
if formToken == cookie.Value {
username := sessions.GetCurrentUserName(r)
if handler != nil {
// this will be executed whenever a file is uploaded
r.ParseMultipartForm(32 << 20) //defined maximum size of file
defer file.Close()
randomFileName := md5.New()
io.WriteString(randomFileName, strconv.FormatInt(time.Now().Unix(), 10))
io.WriteString(randomFileName, handler.Filename)
token := fmt.Sprintf("%x", randomFileName.Sum(nil))
f, err := os.OpenFile("./files/"+token, os.O_WRONLY|os.O_CREATE, 0666)
if err != nil {
log.Println(err)
return
}
defer f.Close()
io.Copy(f, file)
if strings.HasSuffix(handler.Filename, ".png") || strings.HasSuffix(handler.Filename, ".jpg") {
filelink = "<br> <img src='/files/" + token + "'/>"
} else {
filelink = "<br> <a href=/files/" + token + ">" + handler.Filename + "</a>"
}
content = content + filelink
fileTruth := db.AddFile(handler.Filename, token, username)
if fileTruth != nil {
message = "Error adding filename in db"
log.Println("error adding task to db")
}
}
//taskTruth := db.AddTask(title, content, category, taskPriority, username, dueDate)
taskTruth := db.AddTask(title, content, category, taskPriority, username, hidden)
if taskTruth != nil {
message = "Error adding task"
log.Println("error adding task to db")
http.Redirect(w, r, "/", http.StatusInternalServerError)
} else {
message = "Task added"
log.Println("added task to db")
http.Redirect(w, r, "/", http.StatusFound)
}
} else {
log.Println("CSRF mismatch")
message = "Server Error"
http.Redirect(w, r, "/", http.StatusInternalServerError)
}
}
